P 开头单词
pre-emption n. 優先購買權；收買權
pre-empt resources [經濟學]優先佔用資源
pre-empt vt. 先佔； 先取得vi. [橋牌]先發制人地叫牌=preempt
pre-eminently ad.卓越地；傑出地
pre-eminent adj.卓越的；傑出的=preeminent.
pre-eminence n.傑出
pre-emergemergency n.備用; 輔助
pre-embryo n.(胎兒的)胚前期
pre-effector 前傚應器, 前傚應細胞
pre-editor 譯前編輯
pre-eclampsia 先兆子癇
pre-dying 前処理廢水